Locking safety pin



July 31, 1928. 1,679,229

P. RIOSECO LOCKING SAFETY PIN Filed March 19, 1927 INVENTOR M Mr/-',ATTORNEYS Patented July 31, 1928.

h rnnno nrosnco, on NEW YORK, N. i.

LOCKING SAFETY PIN.

Application filed March 19, 1927. Serial No. 176,777.

This invention relates to an improved locking safety pin and hasfor anobject to provide such an article which may be readily closed andopened.

Another object consists in providing such an article whiclris secured inclosed. position against accidental opening or pulling apart.

Another object consists in providing such an article in which the pinpoint tapers continuously in cross section, while securing neverthelessthe objects first mentioned.

A further object is to provide such an article which can readily beattached to fabrics without any greater injury thereto than is caused bythe ordinary type of safety pin.

A stillfurther object is to provide such an i article in which the abovenamed objects are attained with a minimum of structural complezrity.

Another object consists in providing certain improvements in the form,'construction and arrangement of the several parts, where by the abovenamed and other objects may effectively be attained.

It is known that various arrangements have been resorted to in an effortto devise a safety pin which will not accidentally open. Some of thesehave been directed chiefly to preventing an accidental unpinning of thenormal sort, i. e., unpinning by compression of the pin proper towardthe body portion; and some have been directed. toward securing the pointof the pin proper against pulling out longitudinally fromits shield orguardan occurrence annoyingly familiar to users of safety pins. In theformer class are found various more or less complicated snap-catchconstructions which are dihicult to construct and require care andattention to operate. In the latter class it has been customary toprovide notches or the like near the point of the pin which may beengaged by suitable projections in the shield or guard; these notches,of course, in-, terrupting the regular taper of the pin point and makingit very likely to catch and injure the fabric through Which it ispassed.

Distinguished from all the locking safety pins heretofore known is thepin of this in vention in which the pin point is secured in placeabsolutely against longitudinal displacement and firmly againstaccidental unpinning, while yet having a regularly taperingcross-section which will not injure III of F ig. 1, looking in thedirection of the I arrows.

Fig. 4: represents a bottom plan view of the portion shown in section inFig.3.

Fig. 5 represents a side elevationof the pin in open position. v

Fig. 6 represents an enlarged detail yiew of the pin point as seen fromabove.

Fig. 7 represents an enlarged detail view,

partly in section and partly in plan, on the line VIIVII of Fig- 5,looking in the direction of the arrows. I

In said drawings the pines a whole is shown as including a pin portion1, a body portion 2, a spring portion 3, and a guard 4. According tocustomary practice the pin portion 1, body portion 2 and spring portion3 are integrally formed from a single piece of material. The guard l issecured to the end of the body'portion 2 in any usual and convenientmanner. The parts so far mentioned correspond generally with those whichgo to make up the ordinary form of safety pin.

The novel construction by means of which locking is secured will now bedescribed. As shown particularly in Figs. 3 and 6, the pin portion 1 isprovided near its point 5 with a horizontal crimp 6 in the shape of aratherflat V. This crimp 6 is formed simply by the bending of the pinportion 1 into the shape shown and no removal ofmetal is necessary; onthe contrary the cross-section of the pin portion'l tapers regularlynear its point 5, notwithstanding the displacement from a straight lineof the crimped portion 6. The guard 4 includes a channel portion 7. Thelower part of the channel is bent at 8, 8 so as to conform substantiallyto the shape of the crimp 6 in the pinportion 1, as clearly appears inFigs. 3, 4 and 7, and in the upper part of the channel this bend isexaggerated at 9 and 10 so that it does not conform to the shape of thepin portion 1. This efl'ect might also be described as the result ofgiving an extra twist in two directions, at 9 andlO, to the channelalready bent as at 8, 8. The nonconformity at the top is such that thepin may nevertheless be forced into place by manual pressure, causingthe sides of the channel 7 to spring slightly apart. As the pin passesinto the lower part of the channel the sides return to their normalposit-ion and the pin is thus secured within the channel againstaccidental unpinning of the normal sort by the natural resiliency of thesides. When desired it may be unpinned similarly by the application ofmanual pressure in the reverse direction. The bend 8, 8 of the channel 7serves, as shown in Fig. 3, to lock the pin against longitudinaldisplacement, since there is insuliicient resiliency in the lower partof channel 7 to permit of its sides springing apart enough to allowpulling out of the crimped pin portion. Thus it will be seen that I haveprovided a locking safety .pin having extremely simple construction,

easy and positive action, and permanent effectiveness of operation. Inordinary use there is nothing to get out of order and if the sides ofthe channel 7 should ever be bent out of their most eil'ective positiona readjustment can readily be made and the pin thus returned immediatelyto its full usefulness.

It is apparent that various changes may be resorted to inthe form,construction, composition and arrangement of the several parts withoutdeparting from the spirit and scope of my invention, hence I do notintend to be limited to the details herein shown and described, exceptas they may be included in the claims.

What I claim is:

1. An article of the character described comprising, a pin portion and aguard, said pin portion being crimped adjacent its point, and said guardincluding a c iannel portion, part of which channel portion is bent atangles more acute than those of the crimped pin portion so as not tosubstantially con form thereto.

2. An article of the character described comprising, a pin portion and aguard, said pin portion being crimped adjacent its point, and said guardincluding a channel portion, the lower part of said channel being bentso as to conform substantially to said crimped pin portion and the upperpart oi"- said channel being bent similarly but at more acute angles sothat it will not substantially conform to the crimped pin portion.

3. An article of the character described comprising, a )in portion and aguard, said pin portion being crimped adjacent its point, and said guardincluding a channel portion, the lower part of said channel being bentin substantial conformity to the crimped pin portion for securing saidportion against longitudinal displacement, and the upper part of saidchannel being bent similarly but to a greater extent so that it will notsubstantially conform to the crimped pin portion and must be sprungforcibly to permit passage of said portion. whereby the latter issecured against accidental unpinning of the normal sort.

In testimony, that I claim the foregoing; as my invention, I have signedmy name this 17th day of March, 1927.

PEDRO RIOSECO.

